single phase | Page 9

single phase

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  1. C

    Taking a single phase suply from a 3phase transformer.....

    Have got a Three phase transformer wired in star on the 7th floor of a part built tower block and the builder wants another tranny on the 8th floor to supply the works on that floor. There is already a single phase tranny on the 8th.. (not yet wired up) Is it possible to take a single phase...
  2. B

    Coin operated single phase meter

    As above anybody recommend or point me in the right direction for somewhere to get a coin operated single phase electric meter ?
  3. M

    Cable size for single phase motor control panel

    Hi all, Your help would be appreciated. We are mainly domestic sparx so I havn't much experience with cable sizing for motors. On site, we need to supply a motor control panel which operates the sewage pump. There are in fact two pumps but I think they switch between periodically to prolong...
  4. i=p/u

    Single phase switched fuse

    Can you get 40A switched fuse for single phase as need price for them , can't find them online for guide, we link would help thx
  5. V

    Elster AS230 GSM / WAN / LAN / PLC Single Phase Meter

    Does anyone know which companies provide monitoring services for the Elster AS230 Single Phase Meter? How much do they cost for GSM / SIM access, for each data interval? What SIM cards are required to access these services? What software / hardware is required to read this meter via LAN / WAN...
  6. R

    four post car ramp 3 phase to single phase conversion

    Hi , I am new to the forum not a sparky but Physics background .had to make the decision with a car lift whether to buy an inverter or change to a single phase motor . My lift is a Bradbury 40 series 4 tonne .The motor does not need to reverse as it is gravity that takes it down .Also purely...
  7. A

    Testing single phase and three phase

    Hi to the forum This is my first post on here; I am a semi-retired (due to my knees being knacked.) Worked most of my 40 years on the domestic side ie rewires, kitchens, central heating etc not a lot on three phase. Been asked now by a mate to upgrade electrics in a shop premises, the upgrade...
  8. Tontoe

    Three CUs attached to 100A single phase supply

    Hi Had a call out to a customer yesterday who'd had a cooker delivered from John Lewis, but the sparky had refused to connect it as the supply was 32A on a 4mm cable. Manufacturer instructions specify 6mm cable but don't give rating of appliance, and it's not on the data plate, but manufacturer...
  9. S

    2 x SB4000-TLs or 1 x SB7000HV on single phase supply

    I have been asked to do a quote for an 8kWp system on a commercial building which only has a single phase supply. After running different systems through various software it seems that I have 2 options; 1) Install 1 SB7000HV inverter 2) Install 2 x SB4000-TLs Option 1 is the most cost...
  10. D

    Fault finding single phase motors

    Ok got called in regards to somebody's electrica gate not working. Power supply all seems good. After removing the motor i attempted to test the windings. ( i really havent done much with motors) the motor is single phase. Has a N , 2 feeds/supplys/windings. ? is this one :- Electric Gates...
  11. K

    Sleeving 3 phase cable to single phase cable.

    When sleeving a 3 core 3 phase Brown, Black, Grey cable as a single phase cable, which core of the Black and Grey are to be sleeved as Neutral and Earth. Some lads are saying Black as Neutral and others are saying Grey as Neutral. I can't find a specific answer in the reqs.
  12. C

    Three Phase inverter for a single phase install?

    hello there. I am talking to some people at the moment who wish to install 10KWp on a single phase of a three phase supply. The single phase supplies the house and they want to make as much as as they can from the system. Assuming all is well with the DNO etc. I would propose two 5KW single...
  13. S

    single phase upgrage/FIT

    talking to a customer who has 2.94 installed and he wants to increase this to over 4kw (subject to DNO). My question is: If his incoming meter is change to a 3 phase with a new MPAN, will he loose the FIT rate on the existing 2.94kW?
  14. S

    Single phase centrifugal pump.

    Recently looked at a job to relocate a pump due to the poor location it was in for maintenance purposes. The current set up is a 230Va.c centrifugal pump rated 0.77KW 3.4A FLC fed from c type 6amp MCB to 16amp switched socket. Am I right in saying that this needs to be changed to incorperate a...
  15. C

    3phase to single phase question?

    Hi all! Just wired my first 3phase compressor and got it to run the right way' The customer then wanted to move the compressor to another premises with only a single phase supply! He asked can it be done? I answered "......Erm I think so" Help! The compressor is 3phase and earth. Without...
  16. C

    Single phase motor

    I have a problem with a EDR 25 diagonal fan. I wired in the fan to the wiring diagram ie live and neutral. When I turned it on nothing happened. I checked the voltage at the switch, on the live side of the switch there was 240v. When the switch was turned on the 240v dissapeared! Thinking there...
  17. G

    2 post ramp wiring 3 phase to single phase

    hi, i am in need of some advice on wiring for a 2 post ramp, the ramp is a Bradbury electro mechanical that was 3 phase i have replaced the motor with a 3kw single phase capacitor start capacitor run motor, what i need to know is can i run the motor from the original drum switch and contactors...
  18. D

    Single phase contactor

    Hello All, Today i am connecting up a single phase contactor. I know the contactor needs a neutral to operate the coil, but does the neutral for the load have to run through the contactor as well? As you can tell I have not done to many of these. The contactor is for the underfloor heating as...
  19. C

    Will a three phase meter meaure single phase if required?

    I have to install a temporary single phase supply which is getting upgraded to three phase very soon. Will a modern three phase meter measure just the current being used on one phase? Can anyone recommend any particular brand/model? I've got to come out of an existing TP board so looks like I...
  20. H

    electric showers single phase supply

    Hi i'm after some advice, i've been asked to quote for a rewire in a care home which has a single phase supply, they have requested 5x 8.5kw showers to be installed can you apply diversity to electric showers and is there a device which allows only 1 shower to be working at one time? I have...

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